POS1518-HPR BELIEFS ABOUT MEDICATION IN A POPULATION OF PATIENTS WITH INFLAMMATORY ARTHROPATHY
Authors: A. M. Gomes Correia, C. Campinho Ferreira, E. Costa, D. Esperança Almeida, J. Silva, J. Neves, A. R. Ribeiro, M. Cerqueira
Journal: Annals of the Rheumatic Diseases (2022)

Background The beliefs that patients have regarding their medication, namely about its need and concerns regarding possible adverse effects, are a determining factor for adherence and therapeutic success 1 . Objectives Determine which sociodemographic and clinical factors are associated with beliefs related to medication, either in terms of necessity or concerns about medication, in patients with Rheumatoid Arthritis (RA) or Psoriatic Arthritis (PsA). Methods Observational study, with a sample consisting of 58 patients (female 72,4%, male 27,6%; mean age = 51,0 ± 13,2 years; education &lt; 9 years 39,7%, ≥ 9 years 60,3%). Of these, 33 had a diagnosis of RA and 25 of PsA (mean years of disease duration = 8,2 ± 7,3 years; mean disease activity by DAS28-PCR or DAS28-PCR 3 variables = 2,32 ± 0,95). Between March 2021 and June 2021, a brief questionnaire was applied with sociodemographic and clinical variables, such as the use of classic or biological DMARDs and their administration´s route. The Specific Beliefs About Medication Scale (BMQ) was anonymously applied, adapted from the Beliefs About Medicines Questionnaire, comprising 2 sections: section 1 – Specific Needs, patients beliefs about the need for medication; section 2 – Specific Concerns, beliefs related to the dangers of addiction and long-term toxicity or side effects. Higher scores (scale from 5 to 25 points), in sections 1 and 2, reflect the belief of greater need and greater concern regarding medication, respectively. The average scores in section 1 and in section 2 of the BMQ were 9 and 15,7 points, respectively. Statistics: descriptive, Student t-Test, Pearson Correlation and ANOVA, p&lt;0,05. Results Patients with PsA and younger age had a higher mean score in section 2 of the BMQ (p= 0,049 e p&lt;0,01, respectively). The variables male gender, education ≥ 9 years and shorter duration of the disease also showed a tendency to be associated with the higher score in section 2 of the BMQ, with p-values close to statistical significance (p=0,091, p=0,074 and p=0,094, respectively). In the multivariate analysis with the above variables, only the diagnosis of PsA showed a statistically significant association with the score in section 2 of the BMQ (B=4,269; p&lt;0,001; CI 95%=[2,060-6,477]). There was also a statistically significant correlation (p=0,007) between the scores in section 1 and section 2 of the BMQ. Regarding analysis of the sample by diagnosis, there was an association between the subcutaneous route of drug administration in individuals with RA and greater concern with the adverse effects of the medication (p=0,007), and between low disease activity and greater belief in the specific need for medication for the disease (p=0,006). Conclusion In this study, patients with PsA were more concerned about the possible adverse effects of medication than patients with RA. RA patients who take subcutaneous drugs are more afraid of the drug’s toxic potential, and those with lower disease activity have a greater need to comply with the prescribed therapy, which can be explained by the previous effectiveness of the drug in disease control. It was also found that the greater the belief in the need for medication, the greater the concern with its possible long-term harmful effects. References [1]Smolen JS, Gladman D, McNeil HP, et al. Predicting adherence to therapy in rheumatoid arthritis, psoriatic arthritis or ankylosing spondylitis: A large cross-sectional study. RMD Open . 2019;5(1):1-13. doi:10.1136/rmdopen-2017-000585 Acknowledgements I have no acknowledgements to declare. Disclosure of Interests None declared